From: Geoff Thorpe <geoff@openssl.org>
Date: Sun, 30 Nov 2003 21:21:30 +0000 (+0000)
Subject: Make BN_DEBUG_RAND less painfully slow by only consuming one byte of
X-Git-Tag: BEN_FIPS_TEST_5~13^2~37
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=5734bebe05949bf1e7b94dcf225d297389347bb2;p=oweals%2Fopenssl.git

Make BN_DEBUG_RAND less painfully slow by only consuming one byte of
pseudo-random data for each bn_pollute().
---

diff --git a/crypto/bn/bn.h b/crypto/bn/bn.h
index 326aeca9f9..5f16fbad00 100644
--- a/crypto/bn/bn.h
+++ b/crypto/bn/bn.h
@@ -635,12 +635,14 @@ int RAND_pseudo_bytes(unsigned char *buf,int num);
 	do { \
 		const BIGNUM *_bnum1 = (a); \
 		if(_bnum1->top < _bnum1->dmax) { \
+			unsigned char _tmp_char; \
 			/* We cast away const without the compiler knowing, any \
 			 * *genuinely* constant variables that aren't mutable \
 			 * wouldn't be constructed with top!=dmax. */ \
 			BN_ULONG *_not_const; \
 			memcpy(&_not_const, &_bnum1->d, sizeof(BN_ULONG*)); \
-			RAND_pseudo_bytes((unsigned char *)(_not_const + _bnum1->top), \
+			RAND_pseudo_bytes(&_tmp_char, 1); \
+			memset((unsigned char *)(_not_const + _bnum1->top), _tmp_char, \
 				(_bnum1->dmax - _bnum1->top) * sizeof(BN_ULONG)); \
 		} \
 	} while(0)